Pneumatic straw-stacker.



S. M. O. BANGEN. PNEUMATIC 'STRAW STAGKER.

I APPLICATION FILED AUG. 4, 1908. 921 L341 Patented May 11, 1909.

2 SHEETS-SHEET 1.

8, is 1971010110 lg meooeo a MAN/WOO .fmzm. Z 19 35% 1' s. M. O. BANGEN. PNEUMATIC STRAW STAGKER.

APPLICATION FILED AUG. f1, 1908.

2 SHEETSSHBET 2.

atfozue Patented May 11, 1909.

Ewe 7 34 1 00 11 l'oz i tmaoao v thereby enable the fan to drive the air into SIMON n. 0. BANGEN, or OROOKSTON, MINNESO'I PNEUTLVIA'IIC STRAW-STACICER.

' Specification of Letters Patent.

Patented May 11, 1909.

Application filed August 4, 1908. Serial No. 446,952.

To all whom it may concern: I Be it known that I, SIMON M. 0. P-AxenN, a citizen of the United States, residing at Crookston, in the county of Folk and State of Minnesota, have invented a new and useful Pneumatic Straw-Stacker, of which the following is a specification.

The invention relates to improvements in pneumatic straw stackers for threshing or separating machines.

The object of the present invention is to 1 improve the construction of pneumatic straw Y stackers and to increase the e'liieiency ot the 5 same, and to provide a simple and comparatively inexpensive pneumatic straw stacker, adapted to he connected to an ordinary threshing 'machine or separator in position to receive the straw and chafi' therefrom Without the use of a conveyer or raddle rake, and ca able of enabling the straw and chaii to be riven directly from the hopper int-o the chute without assing any portion of the material through the fan, whereby the pneumatic stacker may be operated at the expenditure of less power than those in which portion of the material passes through the A further object of the invention is to arrange the fan out. of the Way of the material, so t at there Will be no liability of the cylinder teeth or gther heavy objects accidentally getting into the fan casing and eausingun l jury to the machine.

The invention also has for its object to arrange the fan at one side of the pneumatic stacker toenable its body to be raised higher above the ground than those fans, which are located either beneath or in rearof the hop-,

per, and to permit a'shorter fan shaft to be used, thereby lessening the materiel, and at the same, time rendering the tan lighter in Weight than heretofore. s 3

Another object of the invention is td' arrange the major portions of the eyes or air intake openings of. the fan casing at the points where the fan starts totake in the air,

and to gradually reduce the size of the eyes or air ntake openings as the fan travels around, and to close the fan casing Where the same is connected with the air trunk, and

the air trunk more efieetively and to increase the force of the air blast. Another object of the invention is to construct the hopper so as to cause the blast of air to travel along the hottonrot the hopper from the nozzleor dischargdcnd of the air trunk to the chute without producing interfering currents at the sides of the hopper.

A further object of the invention isto provide a pneumatic stacker equipped with means for enabling the sieves of the machine t be removed in the usual manner.

With those and other objects in view, the invention consists in the construction and novel combination of parts: hereii'iafte'r fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details oiconstruction, Within the scope of the claims, may be resorted to With-. out departing from the spirit or sacrificing any of the advantages of the invention.

ln'tho drawings :Figure 1 is a perspcctive view of a pneumatic stacker, constructed in accordance with this invention. Fig. 2 is a reverse plan view. Fig. 3 is a longitudinal sectional view. Fig. 4 is a transverse sectional view, taken substantially on theline 4'4 of Fig. 3.

Like numerals of reference designate corresponding parts in all the figures of the drawings.

The pneumatic stacker is equippedwith an approximately rectangular hopper 1, set at an inclination and having its upper por tion arranged at an angle to the lower portion and forming; a hood at the upper or rear end 2, which is curved dowuunrdly for di recting the material to the bottom ot' the hopper. The lower or front end 2% ol the hopper is inclined upwardly and forwardly, and the bottom portion of the hopper is srpaare in cross section, while the upper portion is laterally flared. The bottom 4.. which is straight, is arranged at. an inclination and extends upwardly and ream-sully from the mouth or nozzle 5 oi an airli'unh (5 to a cylindrical chute-receiving necl: 7, which is located at the upper or rear end of the hopper, The

lower portions 41%! the sides of the hopper are i V d perpendicular to the bottoinofi the hopper, and they cooperate parallel and are arra The upper at the upper portions ol its end of the air trunk centrally with relation to pose, and 1t) which is set at an inclination,

the hopper are arranged approximately at an angle 0 mnetv degrees to the bottom ol the hopper, and this inclination ol' the sides and the rectangular shape of the bottom portion of the hopper cause the blast ot' air to travel along; the bottom of the hopper in a direct line from the nozzle or dischargeeud 5 ol' the air trunk to the cylindrical neck, and prevcnt the air l'rom gliding upward and producing interfering currents at the sides ol thehopper. 'lhe upper and lower sectitms ol the lared upper )t'il'llnll are arranged at an angle to each other and are disposed at ditle'rent inclinations, and the hood at the top of the hopper does not close any portion ol' the l'ront ot' the same. i The hopper, which is entirely open from the bottom to the top, is positioned to receive all of the straw and chatl l'rom. a threshing machine cr se iafrator without necessitating the employment of a conveyer or raddle rake. or carrying; the material from the separator into the hopper.

The. pneumatic stacker is designed to be oonnected with a separator in the usual manner, and the intervening s )aee between'the hopper and the casing will )e covered'in the ordinary manner with canvas, or other suitable nutterial to confine the material to cause the entire discharge otthe machine to tall into'the. hopper.

The neck 7, which is connected with the hopper below and in rear of the upper end 2, extends upwardiy at an inclination and is adapted to be couplrd to any suitable chute. .lts outer portion is cylindrical for this purgra'dually merges into the square- )ot-totn )ort ion of the hopper.

The blast ol'air through the air trunk 6' is n'oduced by a-rotary l'au 10,.mouuted on a horizontal shalt ti and arranged within an approximately ovlindrical but casing 12, located at one side of the hopper and provided sides with approximate y senrecylindrical eyes or air intakes 13, arranged eccent rically with relation to the tan shalt and located at the front or.- tions ot the upper halves of the side wal s ol the tan casing; The air trunk (I is connected with the tan casing at the bottom thereo and extends forwardly therefrom to a point in advance of the hopper, and it'is provided thereat with a return or upward bend forming the upwardly and rearwardly ext-ending nozzle or mouth 5. The nozzle or mouth 5, counnunicates with the hop cr at the front end thereof, and its lower wall l'orms a continuation of the inclined bottom of the hopper. The air trunk is provided with a lateral bend it, extending inwardly and forwardly to arrange the front.

the trout or lower'end ol' the hopper. The eyes or air intakes of the tan are so arranged t at thecasing is open where the tan takes in the air, audasthe blades of the fan at the top' tan casing.

wall of the tan teasing.

travel ream'urdly, the eyes or intakes gradually close, and the tan casing is entirely closed at its lmrer tT-t-ltlUlt to prevent the escape ol' air where the blades moire forwardly [or driving the air into the forwardly extending air trunk. This t".;HSt'tttL'tiul1 enables the tan to operate i-tore eitecth-ely, andastronger blast. of air is thereby product-d. The air travels upwardly through the air trunk to the iron t1 end the rent andits direction is changed by the bend of the air trunk, and it enters the hopper through the inclined nozzleor mouth .3, and is practically confined in its operation to the inclined bottom channel or assage and formed by the lower portion of t 6 loop per. The blast of air drives the straw and chatt' up the inclin d bottom of the hopper and through the chute, and as no, portion of the material operated on passes through the fan, the neumatic conveyer effective y operated with much less power than those pneumatic stackers, in which a )ortion ot the material passes through the Also the arrangement ot' the fan casing exteriorh' ot the hopper and in rear of the front end thereof o'tlect-u ally prevents cylinder teeth, or any other heavy object from coming in eontactwith the tan, and thereby causing injury to the machine, The arrange mentof the fan at one side of the hopper enables the bottom ol' the fan casing to be raised higher from the ground than those fans, which are located in rear ofor'beneath the hopper, and the [an shaft does nothave to be extended entirely across the hopper,- thereby reducing the material and lightening the construction.

The fan shaft is journaled in suitable bear ings or boxes 14, mounted on side beams 15 and 16, preterably constructed of flanged steel, or other suitable material? The side beam lfiis bent laterally to reduce the disbeams to aecom' and they lorm a firm 1 tance between the side modate the tan asing, support for the-same; The rear ends of the side, beams are connected by a transverse end portion 1?, which is titted against the rear The side beams are designed portion of the frame- \R'Olli l'or suppt'irting the llt l)pt l. As the particular construction of the tran'te-worlt for supporting thehopper in an inclined position does not constitute a portioi'i of the present invention, fund as the hoppor'niay be supported in any. desired manner, illustration of the frame-work is deemed unnecessary.. The bottom of th 'l'an casing in practice. will be to constitute-a equipped with a removablesection'or plate apted to permit the-tan to be readily l8, at taken outa hen necessary.

v The lower sections 9 of the tmperportions ol' the sidesot' the hopper are: provided with 0pposite doors 10, located adjacent to the it per 13 adapted to be sections 8 and extending downwardly 'r0n1 the upper edges of the sections 9. -'lhe doors til) be removed in the usual njianner.

' Having thus fully described my invention,

what I. claim as new and desire to secure by Letters Patent, is:--

- 1. A. straw stacker including a hopper set at an inclination and open from the front to the rear wall and having sides flared outward at, the upper portions and provided with lower portions cooperating with the bottom I of'the hopper to form a bottom groove or channel constituting the bottom of the hopper and communicating with the same throughout the entire length thereof, and means for forcing a blast of air through the bottom groove or channel.

2. A straw stacker including a hopper set at an inclination and open from the front wall to the rear wall thereof, said hopper being provided with sides having outwardly flared upper portions, the lower portions of the sides being arranged perpendicular to the bottom of the hopper toform a bottom groove or channel constituting the bottom of the hopper and communicating with the same throughout the entire length thereof, and means for forcinga blast of air through the bottom groove'or channel.

3. A straw stacker including a hopper set at an inclination and open throughout its entire. length, said hopper having outwardly flared sides and being provided with a rear end wall curved downwardly and rearwardly and forming a hood.

4. A straw stacker including a hopper set at an inclination and open throughout its entire length, said hopper being" provided at its bottom with a contracted longitu .linal groove or channel and having a tubular extension or neck at the upper rear end ol' the groove or channel.

5. A straw stacker including a hopper set at an inclination and open throughout its entire length, said hopperbeing provided at its bottom with a contracted longitudinal groove or channel and having a tubular extension or neck at the upper rear end of the groove or channel, and a fan having an air trunk comi municating with the lower front end of the groove or channel.

6. A straw stacker including a hopper set at an inclination and open throughout its en tire length and pcsvidod at its bottom with a contrauated Tlongitudinal groove or channel, said hopper having outwardly flared sides and provided with an upper or rear end wall forming a hood, said hopper being also provided in rear of the hood with an extension or neck located at the upper rear end of the groove or channel.

7. A straw stacker including a hopper set at an inclination and open throughout its entire length and provided withsides flared at their upper portions and having a lower inclined front wall and an upper rear wall extending downwardly and rearwardly to form a hood, said hopper being also provided at the bottom with a constricted longitudinal groove or channel, a tubular extension or. neck, arranged at the upper end of the groove or channel and located in rear of the upper end wall, and a fan having an air trunkc0111- municating with the groove or channel at the lower front end thereof.

3. A straw stacker including a hopper set at an inclination and open throughout its entire length, said hopper being rovided at its sides with upper outwardly ared portions composed of upper and lower angular-1y relater sections disposed at different inclinations.

9. A straw stacker including a hopper set at an inclination and provided with a straight inclined bottom and having sides, said sides being provided with angularly related upper and lower )ortions disposed atdifferent inclinations, t e upper portion of the hopper formin ahood entirely open at the front.

10. straw stacker including a hopper set at an inclination and open throughout its entire length and having outwardly flared sides, said sides having oppositely disposed doors located intermedlateof the ends of .the

1 hopper.

1 1. A straw stacker including a hopper, a fan located at one side of the hopper at a point intermediate ofv the ends thereof, and an air trunk extending forwardly from the fan to the front end ofthe hopper and communicating with the said front end.

12. A straw stacker including a hopper, a fan located at one side of the hopper at a point intermediate of the ends thereof, and an air trunk extending forwardly from the fan to the front end of the hopper and communicating with the same centrally of the front end at the bottom of the hop er.

13. A straw stacker including a opper, a fan located at one side of the hopper at a point intermediate of the ends thereof, an air trunk extending forwardly from the fan and bent laterally to arrange its front end centrally with relation to the median line of the h0ppcr,'said air trunk being provided at its front end with a rearwardly extending nozzle or mouth communicating with the front of the hopper.

14. A straw stacker including a hopper, a fan located at one side of the hopper at a point intermediate of the ends thereof, an air trunk extending forwardly from the fan and bent laterally to arrange its front end centrally with relation to the median line of i nation .v '02.; to the fan, saidcasin'g being iaha hover portion, and an air trunk rom. the lower 0 rho hopper. Mi stackor including a hopper; 2m ith the hopper, and n rustingcomiecL-od at the bottom 1k, said fan being also ropori ion of its sides witii an anger: c-roentrically with nd to pvred roarvmrdiy. in iuding a hopper set the hopper, said air trunk being provided l its from end with 2x rearvmrdly emon-ding nozziv or mouth ronnnunic-zding with tho front of tho hopper and :urongod at an inoii- 1 15.1% straw stm-kor iUUiUiiHg n hoppm' provided with vontrm-iod iom; 'udnmi hot- 1 tom channel o roovc, :1 ion arranged m. on? g 7v side of the hopper, on air trunk oxirndii'ig i'olwvarrihy i'roni tho fan to the front 0nd oi'tho hopper and having a rr-znwnrdhv extending: noZZh vonnoctvd with the from 0nd of tho bottom groove or vhannol,

16. A straw stacker including a hoppor provided with :1- contrnr-tod longitudinin no.- ii the and Liiwroof, and an aptom channel or groove, :1 fan znrangvd at one A anoriy hor'aoiitai air trunk connected sido of the hopper, an air trunk oximding with he for and extending forwardly thereiorwardiy from the an to tho from and of tho 1 a air: ITL'OMZ- end of the hopper, the front hoppvr' and having :1 rom'wnrdh vxtcndii'igg I .m of tho air trunk being located henozzlo (OIHHLiUd with the from 0nd oi izhz n' '1 the hoppm'.

o g-ed at on e sidv of tho hopper at a pomt hot-Loni groow or channol, and =1 tuhnhxr 03ci V ,iznom', {ho-t- 1 Cinilll the foregoing as trflshm or non-h urramgod at tho npprr rem m own i horeto afhxed my signature ond oi" tho groove or channol. H! tho prosonw oi two Wrinosscs.

17. A straw slacker invhldinga; a hoppvr, :i g i l'nn provided with n casing having an eyv or intiniv lor-uiod at the upper portion of ivh-v \ido of tho casing and arrangodX-wontricoii Xi H O. RANGER.

dosed portion of :w

ion, 11' [an having a casing ar- 

